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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE General & Further Mathematics => Topic started by: Martoman on February 02, 2010, 08:34:59 pm

Title: Bearings
Post by: Martoman on February 02, 2010, 08:34:59 pm

I can get the right answer to this question after using sine rule and cosine rule, but this is further, so it is slightly worrying I have to go to such lengths to get a simple bearing question.

Question: I travel 400m on a bearing of N75E and then 300 M on S50E. If I turn back from this position and travel all the way to the start again, what will be the distance and angle I travel on this third leg?

All I require is a simple method for this, or is using a combination of sine and cosine rules the only way?

Title: Re: Bearings
Post by: superflya on February 05, 2010, 08:38:38 pm

the sine rule should suffice.